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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
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Quasi-Q-balls in massless scalar fields.
Tomasz Romańczukiewicz1, Yakov Shnir2
1Jagiellonian University, Faculty of Theoretical Physics, Astronomy and Applied Computer Science, 30-348 Kraków, Poland.
Physical Review. E
|November 18, 2025
Summary
This study explores radiating quasi-scalar Q-balls in 1+1 dimensions. Different models show unique decay patterns, with Q-balls in a box becoming linear resonances and modified potentials exhibiting power-law decay.
Area of Science:
- Theoretical Physics
- High Energy Physics
- Cosmology
Background:
- Scalar Q-balls are non-topological solitons.
- Understanding their stability and evolution is crucial for various physics models.
- Radiating quasi-scalar Q-balls present unique decay dynamics.
Purpose of the Study:
- Investigate the long-term evolution of radiating quasi-scalar Q-balls.
- Compare decay mechanisms in two distinct theoretical models.
- Analyze the impact of modified potentials and boundary conditions.
Main Methods:
- Simulations of quasi-scalar Q-ball evolution in 1+1 dimensions.
- Analysis of models with rational potential modifications.
- Study of Q-balls in a box with outgoing boundary conditions.
Main Results:
- Outgoing boundary conditions lead to complex-valued angular frequencies for quasi-scalar Q-balls.
- Both models exhibit similar initial decay phases.
- Quasi-scalar Q-balls in a box transition to linear resonances.
- Rationally modified models show power-law decay in later stages.
Conclusions:
- The dynamics of radiating quasi-scalar Q-balls are highly dependent on model specifics.
- Boundary conditions significantly influence quasi-scalar Q-ball behavior.
- Distinct late-stage decay behaviors are observed, offering insights into soliton stability.
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